CN106640430A - Six-cylinder internal combustion engine exhaust gas recirculation system - Google Patents
Six-cylinder internal combustion engine exhaust gas recirculation system Download PDFInfo
- Publication number
- CN106640430A CN106640430A CN201611181991.3A CN201611181991A CN106640430A CN 106640430 A CN106640430 A CN 106640430A CN 201611181991 A CN201611181991 A CN 201611181991A CN 106640430 A CN106640430 A CN 106640430A
- Authority
- CN
- China
- Prior art keywords
- valve
- exhaust gas
- inlet manifold
- internal combustion
- combustion engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0065—Specific aspects of external EGR control
- F02D41/0072—Estimating, calculating or determining the EGR rate, amount or flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0077—Control of the EGR valve or actuator, e.g. duty cycle, closed loop control of position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
- F02D2021/083—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine controlling exhaust gas recirculation electronically
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a six-cylinder internal combustion engine exhaust gas recirculation system. The six-cylinder internal combustion engine exhaust gas recirculation system comprises an engine gas inlet manifold, a gas outlet manifold, turbochargers and a recirculation channel. The six-cylinder internal combustion engine exhaust gas recirculation system is characterized in that a valve is arranged at the joint of the gas outlet manifold and the recirculation channel, the valve is provided with a P0 gear, a P1 gear and a P2 gear, and all the above-mentioned gears can close communication between the recirculation channel and the engine gas inlet manifold or control exhaust gas in one or two cylinders to enter the gas inlet manifold. According to the six-cylinder internal combustion engine exhaust gas recirculation system, recirculation of the exhaust gas to the gas inlet manifold is controlled by arranging the valve, exhaust gas recirculation with two-gear EGR rates of 16.7% and 33.3% can be achieved by means of a simple structure, EGR demands of an engine under most working conditions can be met, and meanwhile the cost of the EGR system can be obviously reduced.
Description
Technical field
Present invention relates particularly to a kind of six-cylinder engine gas recirculation system.
Background technology.
Abgasgesetz increasingly stricter today, internal combustion engine has to increase increasing new technology to meet exhaust method
Rule require and adapt to low oil consumption policy.The increase of general new technology necessarily causes significantly increasing for internal combustion engine cost, and this is to internal combustion
The development of machine produces restriction.
EGR applications can be obviously improved the discharge of internal combustion engine NOX.But either current low pressure EGR, high pressure EGR, height
The application of pressure EGR improves too many to the cost of internal combustion engine.Though D-EGR can realize low cost, the EGR rate list of D-EGR
One, it is impossible to meet the demand of various working.
The content of the invention
For deficiency of the prior art, the present invention provides a kind of six-cylinder engine gas recirculation system.
A kind of six-cylinder engine gas recirculation system, including motor intake manifold, outlet manifold, turbocharger and
Recirculation line, it is characterised in that be provided with a valve in the junction of the exhaust manifold and recirculation line, the valve has
Tri- gears of P0, P1 and P2, above-mentioned gear can close the connection or control one of recirculation line and motor intake manifold
Or the waste gas in two cylinders enters inlet manifold.
Preferably, the connection of the recirculation line and inlet manifold can be closed when the valve is in P0 gears；Valve
Door allows the waste gas circulation in a cylinder to the inlet manifold when being in P1 gears；Valve allows two cylinders when being in P2 gears
Interior waste gas circulation is to the inlet manifold.
The present invention proposes a kind of six-cylinder engine gas recirculation system, and waste gas recycling is controlled by arranging valve
To inlet manifold, the waste gas recycling of 16.7% and 33.3% two grade of EGR rate can be realized with simple structure, meet engine big
While most operating mode EGR requirements, the cost of egr system can be substantially reduced.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described.
Fig. 1 is the system diagram of the present invention.
Numeral is represented in figure：
1st, inlet manifold 2, exhaust manifold 3, turbocharger 4, recirculation line
5th, cylinder 6, valve.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
Shown in Fig. 1, a kind of six-cylinder engine gas recirculation system, including motor intake manifold 1, outlet manifold, whirlpool
Wheel booster 3 and recirculation line 4, in the junction of the exhaust manifold 2 and recirculation line 4 valve 6, the valve are provided with
6 have tri- gears of P0, P1 and P2, and above-mentioned gear can close the connection or control of recirculation line 4 and motor intake manifold 1
The waste gas made in one or two cylinder enters inlet manifold 1.The valve 6 can close the recycling when being in P0 gears logical
The connection in road 4 and inlet manifold 1；Valve 6 allows the waste gas circulation in a cylinder to the inlet manifold 1 when being in P1 gears；
Valve 6 allows the waste gas circulation in two cylinders to the inlet manifold 1 when being in P2 gears.
Implementation principle：Shown in Fig. 1, cylinder 5 is arranged in order, and sets in the 5th position of cylinder 5 of six cylinder one exhaust manifolds 2
A valve 6 is put, this valve 6 there are three gears.Gas is after into turbocharger 3 into the inlet manifold of engine interior
1, then by going out from exhaust manifold 2 after cylinder 5, when valve 6 is placed in P0 positions, EGR channel belongs to closed mode, EGR rate
For 0%, this gear is typically used in idling cold and full load.Can avoid starting Idling wobble, flame-out and full load
Can be not enough；When the position of valve 6 is in P1 positions, the waste gas of six cylinders all flows into inlet manifold 1 through EGR channel, with air
Mixing, now the EGR rate of engine is 16.7%, and this shelves is applied to middle low speed Smaller load, it is to avoid burning is deteriorated；When 6, valve
Put in P2 positions when, the waste gas of five cylinders and six cylinders all enters inlet manifold 1 through EGR channel, is sufficiently mixed with air, this
When engine EGR rate be 16.7%, this shelves be applied to the big load of high speed, the higher operating mode of EGR rate demand.
ECU according to engine operating condition judge demand EGR rate, and contrast confirmation with which gear EGR rate be close to, then will
Perform the control that signal transmission realizes the gear of valve 6 to valve 6.
The present invention proposes a kind of six-cylinder engine gas recirculation system, controls waste gas by arranging valve 6 and follows again
Ring can realize the waste gas recycling of 16.7% and 33.3% two grade of EGR rate to inlet manifold 1 with simple structure, and satisfaction is started
While machine most of operating mode EGR requirements, the cost of egr system can be substantially reduced.
Various modifications to these embodiments will be apparent for those skilled in the art, herein
Defined General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.
Claims (2)
1. a kind of six-cylinder engine gas recirculation system, including motor intake manifold, outlet manifold, turbocharger and again
Circulation canal, it is characterised in that be provided with a valve in the junction of the exhaust manifold and recirculation line, the valve has
Tri- gears of P0, P1 and P2, above-mentioned gear can close the connection or control one of recirculation line and motor intake manifold
Or the waste gas in two cylinders enters inlet manifold.
2. six-cylinder engine gas recirculation system according to claim 1, it is characterised in that the valve is in P0 shelves
The connection of the recirculation line and inlet manifold can be closed during position；Valve allows the waste gas in a cylinder when being in P1 gears
It is recycled to the inlet manifold；Valve allows the waste gas circulation in two cylinders to the inlet manifold when being in P2 gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181991.3A CN106640430A (en) | 2016-12-20 | 2016-12-20 | Six-cylinder internal combustion engine exhaust gas recirculation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181991.3A CN106640430A (en) | 2016-12-20 | 2016-12-20 | Six-cylinder internal combustion engine exhaust gas recirculation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640430A true CN106640430A (en) | 2017-05-10 |
Family
ID=58834923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611181991.3A Pending CN106640430A (en) | 2016-12-20 | 2016-12-20 | Six-cylinder internal combustion engine exhaust gas recirculation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559106A (en) * | 2017-10-30 | 2018-01-09 | 潍柴动力股份有限公司 | A kind of egr system and its mixed admission structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220233B1 (en) * | 1999-10-13 | 2001-04-24 | Caterpillar Inc. | Exhaust gas recirculation system having variable valve timing and method of using same in an internal combustion engine |
| CN104254678A (en) * | 2012-02-06 | 2014-12-31 | V·拉比 | High-pressure stratification and spark ignition device for an internal combustion engine |
| WO2014005127A3 (en) * | 2012-06-28 | 2015-06-25 | Cummins, Inc. | Techniques for controlling a dedicated egr engine |
| CN105089863A (en) * | 2015-09-10 | 2015-11-25 | 谢晓宇 | Exhaust recirculation device for multi-cylinder and four-stroke internal combustion engine |
| CN105317569A (en) * | 2014-07-17 | 2016-02-10 | 福特环球技术公司 | System and method for dedicated EGR cylinder exhaust gas temperature control |
-
2016
- 2016-12-20 CN CN201611181991.3A patent/CN106640430A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220233B1 (en) * | 1999-10-13 | 2001-04-24 | Caterpillar Inc. | Exhaust gas recirculation system having variable valve timing and method of using same in an internal combustion engine |
| CN104254678A (en) * | 2012-02-06 | 2014-12-31 | V·拉比 | High-pressure stratification and spark ignition device for an internal combustion engine |
| WO2014005127A3 (en) * | 2012-06-28 | 2015-06-25 | Cummins, Inc. | Techniques for controlling a dedicated egr engine |
| CN105317569A (en) * | 2014-07-17 | 2016-02-10 | 福特环球技术公司 | System and method for dedicated EGR cylinder exhaust gas temperature control |
| CN105089863A (en) * | 2015-09-10 | 2015-11-25 | 谢晓宇 | Exhaust recirculation device for multi-cylinder and four-stroke internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559106A (en) * | 2017-10-30 | 2018-01-09 | 潍柴动力股份有限公司 | A kind of egr system and its mixed admission structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |